@Brandon9000,
I have somewhat of a different 'take' on this situation with terrorist organizations, because we can also have home grown terrorists who can join with them from home or in their country.
However, those in Syria and Iraq are performing their deathly deeds to destabilize that region and the world. They need to be stopped in every way possible except for the harming of innocent people.
I believe the longer we wait to take action, the harder it's going to get for the world community to stop these terrorist groups.
I'm wondering how far Putin is planning to go beyond Ukraine? "Do no harm" is not a plan.